22201110012221 has 16 divisors (see below), whose sum is σ = 25630262592000. Its totient is φ = 18836686816128.

The previous prime is 22201110012203. The next prime is 22201110012259. The reversal of 22201110012221 is 12221001110222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201110012221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22201110012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201110017221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13295621 + ... + 14871978.

It is an arithmetic number, because the mean of its divisors is an integer number (1601891412000).

Almost surely, 2^{22201110012221} is an apocalyptic number.

It is an amenable number.

22201110012221 is a deficient number, since it is larger than the sum of its proper divisors (3429152579779).

22201110012221 is a wasteful number, since it uses less digits than its factorization.

22201110012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28168748.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22201110012221 its reverse (12221001110222), we get a palindrome (34422111122443).

The spelling of 22201110012221 in words is "twenty-two trillion, two hundred one billion, one hundred ten million, twelve thousand, two hundred twenty-one".